She maybe think that she won't have any problem, FeiFei Mother kind of look down on his own daughter and their mothers, above having work relationship, are friends. ┑( ̄Д  ̄)┍
The way she behaves is definitely wrong and childish but your sentence was wrong . Just because she's a maid's daughter doesn't mean she can't try to improve her status . But I agree that the way she's doing it is wrong and unacceptable
She’s just a maid’s daughter. Who does she think she is competing and maliciously targeting her boss’s daughter?